<%= form_for(@private_education, url: update_private_education_admin_company_configurations_path, method: :post, html: { multipart: true}) do |f| %>
  <tr>
    <td>私教时长</td>
    <td><%= f.number_field :duration, required: true, style: "width:6em" %>
    <td>小时</td>
  </tr>
  <tr>
    <td colspan='4'>
      <%= submit_tag "保存"%>
    </td>
  </tr>
<% end %>
